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-   1992-1999 (https://www.gmforum.com/1992-1999-91/)
-   -   anyone with a 96 FSM, a/c line pressures? (https://www.gmforum.com/1992-1999-91/anyone-96-fsm-c-line-pressures-238474/)

NERV Jul 2, 2006 08:06 PM

anyone with a 96 FSM, a/c line pressures?
 
i'm fixing my compressor tommorow and refilling later this week, what should the pressures be for a 96?

banned3800 Jul 3, 2006 11:55 AM

Do you by chance know if its an H6 or V5 compressor?

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NERV Jul 3, 2006 12:39 PM

no idea, should it say it on the compressor?

banned3800 Jul 3, 2006 12:46 PM


Originally Posted by NERV
no idea, should it say it on the compressor?

If I could look at it I could tell by the Body of the Compressor...

A lot of the time the pressure in the system will depend upon the Ambient air temps, as well as Humidity level... I believe that the V5 has a bit more pressure than the H6...

95's had the H6, 97's had the V5... I'm not sure of the 96 Model year... Hopefully one of the members with a 96 service manual will chime in.. ;)

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corvettecrazy Jul 3, 2006 12:55 PM

I have them, but wont be able to look anything up until wednesday night when I get home

BlownBuick Jul 3, 2006 02:12 PM

My 96 Park Avenue has the V5, and I'm not sure what the specs say the pressure should be running at, but when I had gauges on it, with the A/C on full blast at idle, it was at 30 psi, and then I reved the motor up, it dropped to 25 psi and stayed put. Even with the fan on low and the motor reved up, it would stay on 25 psi. So, I would say wou should be shooting for 25 psi, but that's only what I saw my car running at, and the A/C works almost too good in it. The high side through out was from 170-190 psi, but it was only about 80* outside with almost no humidity. I think as long as the high side is under 250 psi, your fine.

BlownBuick Jul 5, 2006 11:25 PM

I've been reading around, and it seems that the consensus is that the V5's should run the low side at 45-50 psi, and 25 psi would indicate a low chage of freon. Hummm?????? I'm going to do some investigation, because if this is so, I'm low on freon!

BillBoost37 Jul 6, 2006 08:12 AM


Originally Posted by BlownBuick
I've been reading around, and it seems that the consensus is that the V5's should run the low side at 45-50 psi, and 25 psi would indicate a low chage of freon. Hummm?????? I'm going to do some investigation, because if this is so, I'm low on freon!

There's an old addage for this one.. if it ain't broke...don't break it!


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